La producción secundaria de insectos acuáticos es un tema gran relevancia y poco estudiado, que permite entender la variación biomasa organismos consumidores. Los plecópteros son uno los grupos más abundantes ampliamente usados como modelo en este campo. Por lo anterior, el objetivo trabajo fue determinar dos especies (Anacroneuria marta A. caraca), dominantes tramo medio del río Gaira (Sierra ...

Salmon carcass addition to streams is expected to increase stream productivity at multiple trophic levels. This study examined stream nutrient (nitrogen, phosphorus, and carbon), epilithic biofilm (ash-free dry mass and chlorophyll a), leaf-litter decomposition, and macroinvertebrate (density and biomass) responses to carcass addition in three headwater streams of southwestern Washington State,...

BACKGROUND We provide volume II of a distributional atlas of aquatic insects for the eastern USA state of Ohio. This treatment of stoneflies (Plecoptera) is companion to Armitage et al. (2011) on caddisflies (Trichoptera). We build on a recent analysis of Ohio stonefly diversity patterns based on large drainages (DeWalt et al. 2012), but add 3717 new records to the data set. We base most analys...

Nowadays, the position of Peltoperlidae in Systellognatha has been resolved based on morphological analyses. However, there are different opinions molecular data. To date, only three peltoperlid mitogenomes available, and more sampling is needed to obtain precise phylogenetic relationships. In this study, we obtained complete Cryptoperla kawasawai (15,832 bp) Peltoperlopsis sagittata (15,756 bp...